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Re: upgrade from 9.2.x to 9.3 causes significant performance degradation

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On Tue, Sep 17, 2013 at 11:22 AM, Lonni J Friedman <netllama@xxxxxxxxx> wrote:

> c) What does logs say?

The postgres server logs look perfectly normal, minus a non-trivial
slower run time for most queries.  There's nothing unusual in any of
the OS level logs (/var/log/messages, etc) or dmesg.

Are you generally CPU limited or IO limited?

Grab one of those slower queries and do an "explain (analyze, buffers)" of it.  Preferably with track_io_timing on.

Do you still have test/dev/QA/etc copy running on 9.2 for comparison?

Cheers,

Jeff

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